Home / 216,622.28-324,939-102,743.48

Finding the Fourth Proportional to 216,622.28, 324,939 and 102,743.48

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Solution

The fourth proportional to 216,622.28, 324,939 and 102,743.48 is: 154,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,622.28 : 324,939 = 102,743.48 : x
  2. Step 2: Convert to fraction form
    216,622.28/324,939 = 102,743.48/x
  3. Step 3: Cross multiply
    216,622.28x = 324,939 × 102,743.48
  4. Step 4: Simplify right side
    216,622.28x = 33,385,363,647.72
  5. Step 5: Solve for x
    x = 33,385,363,647.72/216,622.28
  6. Step 6: Final answer
    x = 154,117.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.